If I land at a non-towered airport, why do we need to cancel IFR? And is it possible or preferred to cancel the IFR right before switching over to the CTAF? What is the ATC phraseology for clearing me for any approach vs the visual approach?
By the way, I think it would be awkward to shoot an instrument approach if there were VFR traffic in the pattern - who goes first, and if I have to hold, how do I do that while trying to sequence myself in?
Heres' some of the stuff about Approach Clearances.
4−8−1. APPROACH CLEARANCE
a. Clear aircraft for “standard” or “special”
instrument approach procedures only.
1. To require an aircraft to execute a particular
instrument approach procedure, specify in the
approach clearance the name of the approach as
published on the approach chart. Where more than
one procedure is published on a single chart and a
specific procedure is to be flown, amend the approach
clearance to specify execution of the specific
approach to be flown. If only one instrument
approach of a particular type is published, the
approach needs not be identified by the runway
reference.
2. An aircraft conducting an ILS or LDA
approach must be advised at the time an approach
clearance is issued when the glideslope is reported out
of service, unless the title of the published approach
procedure allows (for example, ILS or LOC Rwy 05).
3. Standard instrument approach procedures
(SIAP) must begin at an initial approach fix (IAF) or
an intermediate fix (IF) if there is not an IAF.
4. Where adequate radar coverage exists, radar
facilities may vector aircraft to the final approach
course in accordance with Paragraph 5-9-1, Vectors
to Final Approach Course, and Paragraph 5-9-2, Final
Approach Course Interception.
5. Where adequate radar coverage exists, radar
facilities may clear an aircraft to any fix 3 NM or more
prior to the FAF, along the final approach course, at
an intercept angle not greater than 30 degrees.
6. Controllers must not disapprove a pilot
request to cold temperature compensate in conjunction
with the issuance of an approach clearance.
PHRASEOLOGY−
CLEARED (type) APPROACH.
(To authorize a pilot to execute his/her choice of instrument
approach),
CLEARED APPROACH.
(Where more than one procedure is published on a single
chart and a specific procedure is to be flown),
CLEARED (specific procedure to be flown) APPROACH.
(To authorize a pilot to execute an ILS or an LDA approach
when the glideslope is out of service)
CLEARED (ILS/LDA) APPROACH, GLIDESLOPE
UNUSABLE.
(When the title of the approach procedure contains “or
LOC”)
CLEARED LOCALIZER APPROACH
(When it is necessary to cancel a previously issued
approach clearance)
CANCEL APPROACH CLEARANCE (additional
instructions as necessary)
EXAMPLE−
“Cleared Approach.”
“Cleared (V-O-R/I-L-S/Localizer) Approach.”
“Cleared L-D-A Runway Three-Six Approach.”
“Cleared Localizer Back Course Runway One-Three
Approach.”
“Cleared (GPS/RNAV Z) Runway Two-Two Approach.”
“Cleared BRANCH ONE Arrival and (ILS/RNAV) Runway
One-Three Approach.”
“Cleared I-L-S Runway Three-Six Approach, glideslope
unusable.”
“Cleared S-D-F Approach.”
“Cleared G-L-S Approach.”
NOTE−
1. Clearances authorizing instrument approaches are
issued on the basis that, if visual contact with the ground
is made before the approach is completed, the entire
approach procedure will be followed unless the pilot
receives approval for a contact approach, is cleared for a
visual approach, or cancels their IFR flight plan.
2. Approach clearances are issued based on known traffic.
The receipt of an approach clearance does not relieve the
pilot of his/her responsibility to comply with applicable
Parts of Title 14 of the Code of Federal Regulations and the
notations on instrument approach charts which levy on the
pilot the responsibility to comply with or act on an
instruction; for example, “Straight-in minima not
authorized at night,” “Procedure not authorized when
glideslope/glidepath not used,” “Use of procedure limited
to aircraft authorized to use airport,” or “Procedure not
JO 7110.65X 10/12/17
4−8−2 Approach Clearance Procedures
authorized at night” or Snowflake icon with associated
temperature.